I personally own a 513T (not TR) Matchmaster I've had it new since 1969. Fine accuracy with good ammo. Mostly shot standard velocity. I used it to hunt squirrels. Needless to say the squirrels had no chance. These guns are getting harder to locate and premium prices are being paid for nice ones. The next generation ( 540x and 540xr) are also fine. My 513T will shoot all day with my 540X as far as accuracy.The 513T was discontinued mostly to make way for the 540x ( which is a single shot).Clip fed target guns can and will shave a bullet upon chambering a round. Make no mistake though that the 40x is a superior gun. Expect to pay a large sum for a 40x. Pay carefull attention to the extras that go with the gun( redfield sights) or rail accessories. Naked guns do bring less.

I have several of them for my club's youth league. They are a little lighter than a 541 but every bit as accurate. I use them for the girls and smaller boys who have difficulty handling the 541. Incidently several years ago one of my students came to for our small bore league and he just picked one out of the club rack...as I recall he shot a 383 or 384....the club armourer was almost orgasmic in his delight to see one of these old guns turn that kind of score....And the guys with the Anschutz's were wondering what happened. Most of the military 513T's were sold by the CMP for a relative song. If you can find one in the $300-$400 range you won't be disappointed.Beach

Just bought a 1964 513T this week for $350. It came with Redfield aperture sights front and rear, and an ergonomic handstop, but I removed the sights temporarily until I replace the front sight with a Tompkins Spirit Level globe sight, now on order.

Meantime, I just had to take it out for a few rounds, so I installed a little 4X scope. Here's how it did with plinker ammo. I'm pleased. That's six rounds:

I read somewhere recently that the 513S differed from the 513T in that the "S" had non-target type barrel, a ramp or post front sight, and lacked the rear receiver mounting block for a rear aperture sight. Although not mentioned, my guess is the 'S' does have the receiver grooved for scope mounting.

But the "SA" is an unknown to me. What is the SA sight configuration? Is it the same as the "S"?